Truck radius bar for locomotives



CLK. GETCHELL.

TRUCK RADIUS BAR FOR LOCOMOTIVES July 10, 1928.

Filed April 27, 1926 Patented July 10, 1928.

- UNITE CHARLES 1g. GETOI-IELL, or scHENEcTADY, new

is a plan or top view s'r E TENT OFFICE,

YORK.

TRUCK Ramos BAR FOR: 1:.oo01vro'r1vns.

My invention relates to the guiding trucks of locomotives, and particularly, to means for constraining the lateral movement of radial trucks. The objects of theinvention are to provide lateral movement constraining means for trucks, of such construction as will permit the truck to be located more closely to the driving wheel base than is practicable in thercase of radius bars of the ordinary type, and to provide a radial construction of such character and location as to be more accessible for inspection, and for detachment when repairs of the truck are rcquired to be made. i v

The improvement claimed is hereinafter fully set forth. I

In the accompanying drawing: Figure 1 of a locomotive truck,

' illustrating an embodiment of my invention;

' radius bar, which is and Fig. 2, a side view, partly in vertical section, thereof.

In locomotives,

comparatively long driv especially those having total wheel base more than is desirable, by locating the truck wheels further away from the front driving wheels, in order to provide sufficient clearance for the ordinary type of located between the truck and the front driving wheels. In electric locomotives, this clearance isoften limited by motor casings. Radial axle boxes are not ordinarily particularly to afford the degree of lateral swing of the truck when associated with a long driving wheel base. My invention has been designed to comply of service required, and avoid theobjections noted.

In the practice I of my invention, referring descriptively' to the specific embodiment thereof which is herein exemplified as applied in an electric locomotive, the frame, ,1, of a two wheeled leading truck, which is located forward of the front driving wheels,

carries the journal'boxes, 2, of an axle, 3,

on the ends of which the wheels, 4, are secured, in the usual manner. The forward end ofthe locomotive frame, 1 is secured .to the bumper beam, 5, or, the locomotive frame is integral with the bumper beam.

ing wheel bases, it frequently becomes necessary to increase, the

desirable in such cases,

with the conditions in some instances, 1

Application filed April 27,- 1926. Serial No. 104,981.

The truck frame, 1, is pivotally connected to the locomotive frame, by the centre pin, 1' and is coupled, the bumper beam, 5, by radiusbars, 6, 6 the forward ends of which. are pivoted to brackets, 7 7 on the bumper beam, by pins, 8, 8, and the rear ends are pivoted to the truck frame by pins, 9, 9 Vertical movementv of the centre pin, 1*, is provided for, by spherical bushings, 10, fitted on the pins, 8, 8? of the radius bars. I

In the operation of a truck of the con struction substantially as above described, when entering a curved portion of the track, the forward ends of move about the axial lines ofthepins, 8, 8, and the rear ends move about the axial lines of thepins, 9, 9 and carry laterally with them, the truck frame, about the axial line of the The truck frame, when moving either direction, assumes practically the same position, relatively to the locomotive to the rear of'the truck, is applied, as in ordinary practice. Y

adjacent ,to its ends, to

the radius bars, 6, 6*,

frame, as when ajsingle fulcrum pin, located While my invention is hereinexemplified I in connection with an electric locomotive,

with the requirements of a leading truck.

I claim as my invention and desire to se-,

cure by Letters Patent:

1. In a locomotive, the combination of a locom'otiveframe; a bumper beam thereon; a wheeled'truck frame, movable, about a centre pin on the locomotive frame; radiusbars, coupling theends of the truck frame to'the bumper beam. 7

1 2. Ina locomotive, the combination of a locomotive frame; a

CHARLES K. GE GH L fully complies bumper beam thereon, P a wheeled truck frame; and a pair of radius joint, to the a 1, which moves I centre pin, 1

laterally in 

